Transparent, near-infrared organic photovoltaic solar cells for window and energy-scavenging applications

Richard R. Lunt, Vladimir Bulovic

Research output: Contribution to journalArticle

  • 140 Citations

Abstract

We fabricate near-infrared absorbing organic photovoltaics that are highly transparent to visible light. By optimizing near-infrared optical-interference, we demonstrate power efficiencies of 1.3±0.1% with simultaneous average visible transmission of >65%. Subsequent incorporation of near-infrared distributed-Bragg-reflector mirrors leads to an increase in the efficiency to 1.7±0.1%, approaching the 2.4±0.2% efficiency of the opaque cell, while maintaining high visible-transparency of >55%. Finally, we demonstrate that a series-integrated array of these transparent cells is capable of powering electronic devices under near-ambient lighting. This architecture suggests strategies for high-efficiency power-generating windows and highlights an application uniquely benefiting from excitonic electronics.

LanguageEnglish (US)
Article number113305
JournalApplied Physics Letters
Volume98
Issue number11
DOIs
StatePublished - Mar 14 2011

Profile

scavenging
power efficiency
solar cells
Bragg reflectors
cells
electronics
illuminating
mirrors
interference
energy

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Cite this

Transparent, near-infrared organic photovoltaic solar cells for window and energy-scavenging applications. / Lunt, Richard R.; Bulovic, Vladimir.

In: Applied Physics Letters, Vol. 98, No. 11, 113305, 14.03.2011.

Research output: Contribution to journalArticle

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